When using mask modifier, particles get also generated from the origin #95598

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opened 2022-02-08 04:18:00 +01:00 by Robert Rioux · 9 comments

System Information
Operating system: macOS-10.14.4-x86_64-i386-64bit 64 Bits
Graphics card: NVIDIA GeForce GT 750M OpenGL Engine NVIDIA Corporation 4.1 NVIDIA-12.0.23 355.11.10.50.10.103

Blender Version
Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: f1cca30557
Worked: (newest version of Blender that worked as expected)

Short description of error
I'm emiting particles from an object. I use the mask modifier so that the particles are generated only in some areas. Particles will be generated from the origin, even if there's no geometry there.

Exact steps for others to reproduce the error
Play the animation from the attached file. You will see a column of particles coming from the origin.

Bug.blend

**System Information** Operating system: macOS-10.14.4-x86_64-i386-64bit 64 Bits Graphics card: NVIDIA GeForce GT 750M OpenGL Engine NVIDIA Corporation 4.1 NVIDIA-12.0.23 355.11.10.50.10.103 **Blender Version** Broken: version: 3.0.0, branch: master, commit date: 2021-12-02 18:35, hash: `f1cca30557` Worked: (newest version of Blender that worked as expected) **Short description of error** I'm emiting particles from an object. I use the mask modifier so that the particles are generated only in some areas. Particles will be generated from the origin, even if there's no geometry there. **Exact steps for others to reproduce the error** Play the animation from the attached file. You will see a column of particles coming from the origin. [Bug.blend](https://archive.blender.org/developer/F12854385/Bug.blend)
Author

Added subscriber: @Funnybob

Added subscriber: @Funnybob
Author

I tried to export an alembic and generate the particles from that instead and I get a similar problem. So look like the issue in on the particles side and not the geometry.

I tried to export an alembic and generate the particles from that instead and I get a similar problem. So look like the issue in on the particles side and not the geometry.
Member

Added subscriber: @PratikPB2123

Added subscriber: @PratikPB2123
Member

Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'
Member

Hi, thanks for the report. Similar issue has been closed before as the design limitation: #32109 (Object with mask modifier emits particles mostly from object center)
Soon particle system will be replaced by new system so I am not sure if developers are going to fix this problem. Will confirm for now.

Hi, thanks for the report. Similar issue has been closed before as the design limitation: #32109 (Object with mask modifier emits particles mostly from object center) Soon particle system will be replaced by new system so I am not sure if developers are going to fix this problem. Will confirm for now.
Member

This comment was removed by @PratikPB2123

*This comment was removed by @PratikPB2123*
Author

Ok thanks.

Ok thanks.

Added subscriber: @dfelinto

Added subscriber: @dfelinto

Thanks for the report. Marking this as known issue since it depends on the old particle settings which is end of life .

Thanks for the report. Marking this as known issue since it depends on the [old particle settings which is end of life ](https://developer.blender.org/tag/nodes_physics/).
Philipp Oeser removed the
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Reference: blender/blender#95598
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